Electra PXD912 Service Manual page 26

PERFORMANCE DATA & PRESSURE CURVES
5.4.2 Heating Mode at 7.5m Tubing Connection.
230V : Indoor Fan at High Speed.
ENTERING AIR
WB OU COIL (°C)
-10
-7
-2
10
15
20
*
the above chart includes the weighted deicing infleuence.
LEGEND
TH – Total Heating Capacity, kW
PI – Power Input, kW
WB – Wet Bulb Temp., (
DB – Dry Bulb Temp., (
ID – Indoor
OU – Outdoor
5.5 Capacity Correction Factor Due to Tubing Length
5.5.1 Cooling
3m
7.5m
1.03
*
Minimum recommended tubing length between indoor and outdoor units is 3m.
5.5.2 Heating
3m
7.5m
1.05
*
Minimum recommended tubing length between indoor and outdoor units is 3m.
5-6
15
TH
1.94
2.09
2.22
2 2.70
6 3.81
4.14
4.48
4.72
o
C)
o
C)
TOTAL TUBING LENGTH
10m 15m
1 0.961 0.948
TOTAL TUBING LENGTH
10m 15m
1 0.975 0.963
CONTENT
ENTERING AIR DB ID COIL ( °C)
20
PI TH
0.92 1.87
0.94 2.02
0.95 2.15
1.00 2.59
1.08 3.70
1.14 4.03
1.18 4.37
1.22 4.61
20m 25m 30m
— — —
20m 25m 30m
— — —
25
PI TH
0.98 1.79
0.99 1.94
1.01 2.07
1.06 2.48
1.15 3.57
1.21 3.92
1.28 4.26
1.32 4.48
40m 50m
— —
40m 50m
— —
SM PXD 1-E.3 GB
PI
1.03
1.05
1.07
1.13
1.22
1.30
1.36
1.43